Threats & Attacks第 2 / 100 题
Which malware type encrypts a victim's files and demands payment for the decryption key?
a.Ransomware
b.Rootkit
c.Keylogger
d.Adware
解析
Ransomware encrypts data and extorts the victim for a decryption key, often with a payment deadline. Modern variants also exfiltrate data first to enable double extortion. Reliable offline backups are the most effective recovery control.
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